Has Label?

The Has Label? action resolves a Gmail label and checks whether it is currently applied to one message.

Inputs

Input	Type	Required	Description
Third-party account	Google account	Yes	Gmail account containing the message.
Message ID	String	Yes	Gmail ID of the message to inspect.
Label	String	Yes	Existing label name or exact label ID.

Label names are resolved case-insensitively after trimming whitespace.

Output	Type	Description
Has Label	Boolean	Whether the resolved label is on the message.

Use the boolean in an If action to avoid repeating work or to route labeled messages differently.

Label not found

This action fails when the label does not exist. It returns false only when the label exists but is not applied to the message.